There is no reason to settle for Phantom 4 when you can get a phantom 4 Pro plus for just about the same amount,
I picked up two of these $1000 each. .
To answer your other question in no way is the Phantom 4 Pro a downgrade.
She may be a little bigger but 4K at 60 frames is one hell of way to get lighting strikes not to mention the king of hand catching in heavy winds.
Gear to fly your Phantom in and out of the Storm
I love my phantoms, especially the pro. I can use them for both photography and hauling things, mostly bait. Fond of my new Mini for fast set-up and size, but need the phantoms for work. Good price for pro, if in good shape and a couple of batts. Enjoy your addiction.